Valley of the dead oaks
Derived from a Native American (specifically Salinan) word meaning 'valley of the dead oaks.' It is the name of a historic town in Monterey County, California, and has been used as a rare given name.
Less common today
Jolon isn't in the latest US Top 1000. It last peaked at #7,699 in 2011.
US births per 5-year period, 1990βpresent (SSA data).